Source of file ParameterBag.php
Size: 8,278 Bytes - Last Modified: 2013-07-17T08:22:21+02:00
/home/theseer/Downloads/Symfony/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307 | <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\DependencyInjection\ParameterBag; use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException; use Symfony\Component\DependencyInjection\Exception\ParameterCircularReferenceException; use Symfony\Component\DependencyInjection\Exception\RuntimeException; /** * Holds parameters. * * @author Fabien Potencier <fabien@symfony.com> * * @api */ class ParameterBag implements ParameterBagInterface { protected $parameters; protected $resolved; /** * Constructor. * * @param array $parameters An array of parameters * * @api */ public function __construct(array $parameters = array()) { $this->parameters = array(); $this->add($parameters); $this->resolved = false; } /** * Clears all parameters. * * @api */ public function clear() { $this->parameters = array(); } /** * Adds parameters to the service container parameters. * * @param array $parameters An array of parameters * * @api */ public function add(array $parameters) { foreach ($parameters as $key => $value) { $this->parameters[strtolower($key)] = $value; } } /** * Gets the service container parameters. * * @return array An array of parameters * * @api */ public function all() { return $this->parameters; } /** * Gets a service container parameter. * * @param string $name The parameter name * * @return mixed The parameter value * * @throws ParameterNotFoundException if the parameter is not defined * * @api */ public function get($name) { $name = strtolower($name); if (!array_key_exists($name, $this->parameters)) { if (!$name) { throw new ParameterNotFoundException($name); } $alternatives = array(); foreach (array_keys($this->parameters) as $key) { $lev = levenshtein($name, $key); if ($lev <= strlen($name) / 3 || false !== strpos($key, $name)) { $alternatives[] = $key; } } throw new ParameterNotFoundException($name, null, null, null, $alternatives); } return $this->parameters[$name]; } /** * Sets a service container parameter. * * @param string $name The parameter name * @param mixed $value The parameter value * * @api */ public function set($name, $value) { $this->parameters[strtolower($name)] = $value; } /** * Returns true if a parameter name is defined. * * @param string $name The parameter name * * @return Boolean true if the parameter name is defined, false otherwise * * @api */ public function has($name) { return array_key_exists(strtolower($name), $this->parameters); } /** * Removes a parameter. * * @param string $name The parameter name * * @api */ public function remove($name) { unset($this->parameters[strtolower($name)]); } /** * Replaces parameter placeholders (%name%) by their values for all parameters. */ public function resolve() { if ($this->resolved) { return; } $parameters = array(); foreach ($this->parameters as $key => $value) { try { $value = $this->resolveValue($value); $parameters[$key] = $this->unescapeValue($value); } catch (ParameterNotFoundException $e) { $e->setSourceKey($key); throw $e; } } $this->parameters = $parameters; $this->resolved = true; } /** * Replaces parameter placeholders (%name%) by their values. * * @param mixed $value A value * @param array $resolving An array of keys that are being resolved (used internally to detect circular references) * * @return mixed The resolved value * * @throws ParameterNotFoundException if a placeholder references a parameter that does not exist * @throws ParameterCircularReferenceException if a circular reference if detected * @throws RuntimeException when a given parameter has a type problem. */ public function resolveValue($value, array $resolving = array()) { if (is_array($value)) { $args = array(); foreach ($value as $k => $v) { $args[$this->resolveValue($k, $resolving)] = $this->resolveValue($v, $resolving); } return $args; } if (!is_string($value)) { return $value; } return $this->resolveString($value, $resolving); } /** * Resolves parameters inside a string * * @param string $value The string to resolve * @param array $resolving An array of keys that are being resolved (used internally to detect circular references) * * @return string The resolved string * * @throws ParameterNotFoundException if a placeholder references a parameter that does not exist * @throws ParameterCircularReferenceException if a circular reference if detected * @throws RuntimeException when a given parameter has a type problem. */ public function resolveString($value, array $resolving = array()) { // we do this to deal with non string values (Boolean, integer, ...) // as the preg_replace_callback throw an exception when trying // a non-string in a parameter value if (preg_match('/^%([^%\s]+)%$/', $value, $match)) { $key = strtolower($match[1]); if (isset($resolving[$key])) { throw new ParameterCircularReferenceException(array_keys($resolving)); } $resolving[$key] = true; return $this->resolved ? $this->get($key) : $this->resolveValue($this->get($key), $resolving); } $self = $this; return preg_replace_callback('/%%|%([^%\s]+)%/', function ($match) use ($self, $resolving, $value) { // skip %% if (!isset($match[1])) { return '%%'; } $key = strtolower($match[1]); if (isset($resolving[$key])) { throw new ParameterCircularReferenceException(array_keys($resolving)); } $resolved = $self->get($key); if (!is_string($resolved) && !is_numeric($resolved)) { throw new RuntimeException(sprintf('A string value must be composed of strings and/or numbers, but found parameter "%s" of type %s inside string value "%s".', $key, gettype($resolved), $value)); } $resolved = (string) $resolved; $resolving[$key] = true; return $self->isResolved() ? $resolved : $self->resolveString($resolved, $resolving); }, $value); } public function isResolved() { return $this->resolved; } /** * {@inheritDoc} */ public function escapeValue($value) { if (is_string($value)) { return str_replace('%', '%%', $value); } if (is_array($value)) { $result = array(); foreach ($value as $k => $v) { $result[$k] = $this->escapeValue($v); } return $result; } return $value; } public function unescapeValue($value) { if (is_string($value)) { return str_replace('%%', '%', $value); } if (is_array($value)) { $result = array(); foreach ($value as $k => $v) { $result[$k] = $this->unescapeValue($v); } return $result; } return $value; } } |